Upper gastrointestinal bleeding among Navajo Indians.
D000293:Adolescent; D000328:Adult; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology* / Q000628:therapy; D006801:Humans; D007198:Indians, North American; D008297:Male; D008875:Middle Aged; D009516:New Mexico